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Epilepsy and Seizures: Causes, Diagnosis, and Treatment
Neurology August 2026 13 min read

Epilepsy and Seizures: Causes, Diagnosis, and Treatment

A first seizure is frightening for any family. Learn the causes of epilepsy, how it's diagnosed, and how modern treatment keeps most seizures controlled.

RReviewed by Dr. Rukmaji · Neurology · Reviewed on August 2026
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Status Epilepticus (Prolonged or Repeated Seizure)

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⚠️ Red Flag Warning Signs: Seek emergency hospital care immediately if you or someone around you notices:

A seizure lasting longer than five minutes
A second seizure starting before full recovery from the first
Difficulty breathing, or bluish lips/face during or after the seizure
Not regaining consciousness between repeated seizures
Time the seizure and call SDM 24/7 Emergency immediately if it passes five minutes — protect the person from injury, but do not restrain them or put anything in their mouth.
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Watching someone have a seizure for the first time is genuinely frightening, and the uncertainty afterward — was that a one-time event, or the start of something ongoing — is often just as unsettling as the episode itself. Understanding what epilepsy actually is, and isn't, helps families move from panic toward a clear plan.

Epilepsy is a neurological condition defined by a tendency toward recurring, unprovoked seizures, caused by sudden bursts of abnormal electrical activity in the brain. The World Health Organization notes that epilepsy is one of the most common serious neurological conditions worldwide, and importantly, one of the most treatable.

This guide was reviewed by Dr. Rukmaji, a neurologist at SDM Hospital who diagnoses and manages epilepsy and other seizure disorders through our Neurology department, working to find a medication regimen that controls seizures with as few side effects as possible.

The Epilepsy Foundation explains that a single seizure does not necessarily mean epilepsy — the diagnosis generally requires two or more unprovoked seizures, or one seizure alongside a high risk of recurrence based on brain imaging or EEG findings.

The National Institute of Neurological Disorders and Stroke tracks epilepsy research and notes that with appropriate medication, a large majority of people with epilepsy achieve good seizure control and are able to live full, active lives, including working and driving once cleared by their neurologist.

The CDC emphasizes that epilepsy carries significant social stigma in many communities despite being a well-understood, manageable medical condition — something worth actively pushing back against as a family navigating a new diagnosis.

For general background reading, MedlinePlus offers reliable, plain-language explanations of seizure types and treatment. It's also worth understanding how epilepsy differs from other acute neurological emergencies — our stroke guide covers a related but distinct emergency that also demands rapid recognition.

This guide covers the common causes of epilepsy, how a neurologist reaches a diagnosis, the full range of treatment options, and — critically — exactly when a seizure has crossed into a genuine medical emergency.

Know the Signs

Symptoms to Watch For

Convulsive (tonic-clonic) seizures

Involving stiffening followed by rhythmic jerking, loss of consciousness, and sometimes tongue biting or incontinence.

Absence seizures

Brief lapses in awareness, often mistaken for daydreaming, most common in children.

Focal seizures with retained awareness

Unusual sensations, movements, or emotions in one part of the body while remaining conscious.

Focal seizures with impaired awareness

Confused, repetitive behaviors like lip-smacking or fumbling, with reduced awareness of surroundings.

A pre-seizure aura

An unusual sensation, smell, or feeling some patients experience just before a seizure begins.

Post-seizure confusion or fatigue

A period of tiredness, confusion, or headache that commonly follows a seizure.

Muscle jerking without full loss of consciousness

Brief, sudden muscle jerks (myoclonic seizures), sometimes just after waking.

Temporary loss of muscle tone

Sudden collapse or dropping, seen in certain less common seizure types.

Understanding Why

Common Causes

Idiopathic (unknown cause)

A significant proportion of epilepsy cases have no clearly identifiable cause despite thorough evaluation.

Genetic factors

Some forms of epilepsy run in families or arise from specific inherited genetic changes.

Brain injury

Head trauma, even from years earlier, can lead to epilepsy developing later.

Stroke

A common cause of new-onset seizures in older adults, related to the brain injury a stroke causes.

Brain infections

Past meningitis or encephalitis can leave scarring that later triggers seizures.

Developmental brain conditions

Structural brain differences present from birth can be an underlying cause, particularly in children.

Brain tumors

Can cause seizures either from the tumor itself or the surrounding brain tissue irritation.

Prenatal or birth-related brain injury

Oxygen deprivation or injury around birth is a recognized cause of childhood epilepsy.

Who's More Likely

Risk Factors

Family history of epilepsy

Raises the likelihood of developing certain genetic epilepsy syndromes.

History of head injury

Significantly raises the long-term risk of developing seizures, sometimes years after the original injury.

Stroke history

One of the most common causes of new-onset seizures after age 60.

Childhood febrile seizures

A history of prolonged or repeated febrile seizures in childhood is linked to somewhat higher epilepsy risk.

Brain infection history

Past meningitis or encephalitis raises long-term seizure risk.

Developmental conditions

Certain developmental or genetic syndromes carry a higher likelihood of epilepsy.

Dementia in older adults

Associated with a somewhat higher risk of developing seizures later in life.

Substance withdrawal

Sudden withdrawal from alcohol or certain medications can trigger seizures in susceptible individuals.

Getting Answers

Diagnosis

1

Detailed seizure history

A careful description of what happened before, during, and after the episode, ideally from a witness too.

2

Electroencephalogram (EEG)

Records the brain's electrical activity and is the key test for identifying seizure patterns.

3

MRI brain imaging

Looks for a structural cause such as scarring, a tumor, or a developmental brain difference.

4

CT scan

Used urgently after a first seizure to quickly rule out bleeding or another acute brain problem.

5

Blood tests

Checks for metabolic causes, infection, or substance-related triggers that can cause seizures.

6

Video EEG monitoring

Extended monitoring used when the diagnosis or seizure type isn't clear from a routine EEG.

7

Neurological examination

Assesses overall brain function and looks for any focal signs pointing toward a specific cause.

8

Assessment of recurrence risk

After a single seizure, imaging and EEG findings help determine the likelihood of it happening again.

Your Options

Treatment Options

Anti-seizure medication

The primary treatment, controlling seizures completely in the majority of patients when the right medication and dose are found.

Medication adjustment and monitoring

Careful dose titration to control seizures while minimizing side effects, often over several visits.

Emergency seizure management

Specific medication and protocols for a prolonged seizure or cluster of seizures needing urgent treatment.

Dietary therapy

A structured, medically supervised ketogenic diet used in select, typically pediatric, drug-resistant cases.

Vagus nerve stimulation

A surgically implanted device that reduces seizure frequency in certain patients not fully controlled by medication alone.

Epilepsy surgery

Considered for drug-resistant epilepsy when a clear, safely removable seizure focus is identified.

Lifestyle and trigger management

Identifying and managing personal seizure triggers like sleep deprivation or missed medication.

Regular neurology follow-up

Ongoing review to monitor seizure control, medication levels, and any side effects.

Your Journey

Step-by-Step Recovery Plan

1

Initial neurological evaluation

A thorough assessment following a first seizure or suspected epilepsy diagnosis.

2

Diagnostic testing

EEG and imaging to identify a cause where possible and characterize the seizure type.

3

Start appropriate medication

Beginning with the medication best suited to your specific seizure type, at a carefully titrated dose.

4

Monitor for seizure control and side effects

Regular follow-up to confirm seizures are controlled and medication is well tolerated.

5

Adjust treatment as needed

Dose or medication changes made if seizures continue or side effects are significant.

6

Build a seizure action plan

A clear plan for family members covering what to do during and after a seizure.

7

Address lifestyle factors

Sleep, stress, and medication adherence reviewed as part of ongoing seizure control.

8

Long-term monitoring

Periodic review of medication necessity and dosage as your condition and life circumstances evolve.

Stay Ahead

Prevention Tips

Take medication exactly as prescribed

Missed doses are one of the most common, preventable triggers for breakthrough seizures.

Maintain consistent sleep

Sleep deprivation is a well-recognized seizure trigger for many people with epilepsy.

Manage stress

High stress is linked to increased seizure frequency in some patients.

Avoid known personal triggers

Identifying and avoiding specific triggers, such as flashing lights for some patients, reduces seizure frequency.

Limit alcohol

Alcohol, and particularly alcohol withdrawal, can trigger seizures in people with epilepsy.

Wear a medical ID

Ensures appropriate emergency care if a seizure occurs in public.

Attend regular follow-up appointments

Ongoing monitoring catches any need for medication adjustment before seizures recur.

Protect against head injury

Since head trauma can itself be both a cause and complication of seizure disorders.

Nourish Yourself

Diet Recommendations

Foods to Eat

  • A generally balanced, regular diet unless a specific medical diet is prescribed
  • Consistent meal timing to support stable medication levels
  • Adequate hydration
  • Foods rich in vitamin D and calcium for bone health, relevant with some long-term medications

Foods to Avoid

  • Excess alcohol
  • Skipping meals, which can affect medication levels and blood sugar
  • Grapefruit, which can interact with certain anti-seizure medications

Nutrition Tips

  • Always check with your neurologist before starting any new supplement, since interactions with seizure medication are possible.
  • Keep medication timing consistent with meals if that's how it was prescribed.
  • Never adjust your diet as a substitute for prescribed medication without medical guidance.

When to Visit a Doctor

A first-ever seizure of any kind, even if it seems to resolve completely.
Recurrent episodes of unusual movements, confusion, or lapses in awareness.
A family history of epilepsy alongside any seizure-like symptoms.
Seizures that are changing in pattern or frequency despite treatment.
Side effects from seizure medication that are difficult to tolerate.
A seizure lasting more than five minutes, or a second seizure without regaining consciousness — this is a medical emergency, seek immediate care.
Why SDM Hospital

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High Success Rate

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Trusted by Families

A hospital families in Gurugram rely on.

My teenage daughter had a seizure out of nowhere at home, and it was without question the most frightening night of our lives. Dr. Rukmaji walked us through the testing calmly and explained exactly what her EEG showed and why. She's been fully seizure-controlled on her medication for over a year now, and she's back to school and sports like nothing happened.

P

Parent of a patient

Teenager treated for epilepsy at SDM Hospital

Common Questions

Frequently Asked Questions

Not necessarily — epilepsy is generally diagnosed after two or more unprovoked seizures, or one seizure with a high risk of recurrence based on testing.

Some children outgrow certain epilepsy syndromes, and a minority of adults achieve long-term seizure freedom off medication, but for most, epilepsy is managed long-term with treatment rather than cured.

Some forms have a genetic component and can run in families, though many cases occur with no family history at all.

Many can, once they've achieved a period of confirmed seizure control as determined by their neurologist and applicable regulations.

Protect them from injury, turn them onto their side if possible, don't restrain them or put anything in their mouth, and time the seizure — seek emergency help if it lasts more than five minutes.

Yes, they're generally safe with appropriate monitoring, and the risk of uncontrolled seizures typically far outweighs medication side effects.

Yes, stress is a commonly reported trigger for some people with epilepsy, alongside sleep deprivation and missed medication.

Yes, with proper neurology and obstetric care and, often, a review of medication choice during pregnancy planning.

In most cases yes, with appropriate safety precautions and staff awareness, and this is something to discuss specifically with your neurologist.

Seizures typically involve abnormal movements or behavior and a period of confusion afterward, while fainting usually resolves quickly with no lingering confusion — though this can be hard to tell apart without a proper evaluation.

A prolonged seizure lasting more than five minutes, or repeated seizures without recovery in between — a genuine medical emergency requiring immediate treatment.

You can book a consultation with our Neurology team through online appointment booking, with urgent same-day evaluation available after a first seizure.

This article is for general information only and does not replace a medical consultation. Always speak with a qualified doctor about your specific symptoms, diagnosis, or treatment.

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